Incinerator construction



Dec. 8, 1925- 1.565.225

' A. S. DEGARIE INCINERATOR CONSTRUCTION Filed May 12, 1922 2 Sheets-Sheet 1 I Dec. 8, 1925- A. s. DECARIE INCINERATOR CONSTRUCTION Filed May 12, 1922 2 Sheets-Sheet 2 IN VENTOR 2? IZEXINDfRfiDECfl/PIE Patented Dec. 8, 1925.

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IN'CINERATOR CQNS'LEUCTIUN.

Application. filed May 12, 1922.

To all whom it may concern:

Be it known that i, ALEXANDER S. Duos: inn, a sub ect ot the King of Great Britain,

and resident of the city of Montreal, in the Province of Quebec and Dominion of (lain ada, have invented certain new and useful improvements in Incinerator Constructions, of which the following is a full, clear, and exact description.

This invention relates to improvements in incinerators, and the primary object of the invention is to provide means for establishing a positive circulation of water through the grates which support garbage during incineration. A, fruit-her object is to provide a grate or the like having a con tinuous water passage therethreugh, including the entire grate. Another object is to provide a grate so constructed that the circulation of. water will be automatically induced by the different temperatures prevaihng 111 different parts of the grate. Still another object is to provide a grate constructed to so distribute the water circulating therethrough that a clearly defined circulation is induced owing to the relative speec s at which water is heated at different parts of the grate. A subsidiary object is to provide one efiicientform of water cooled 0 grate.

it has already been proposed to provide water cooled garbage grates in an incinerator, but it has been found in practice that the cooling is not efficient becai'ise the circulation is defective. with the result that parts, or sometimes the whole grate, becon e dry owing to steam pocketing and excluding water.

The present invention deals wit-h the construction of rotatably mounted hanging or suspended incinerator grates, which are provided to hold the garbage to facilitate its destruction. The grates are adapted to disor rotating movement about their support. In my invention, the grates are constructed in such a manner that a circulation of water will be positively maintained through all parts of the grate at all times. in other provision of an eflicient circulation and continuous circulation of water through the grate.

The establishment of water support designated words the invention deals broadly witlrthe extends through both walls Serial No. 569,439.

may be effected in different ways. Preferably the grate is so constructed that the water will circulate naturally. The essential featme is that the grate must constitute a continuous passage for the water without pock- ()ne method of accomplishing this is disc osed in the following detailed description and annexed drawing of a depending incinerator grate, and embodies the main supporting member of tubular construction, wnieh may serve as the outlet. The frame and bars of the grate are all of tubular construction, the frame serving as an inlet and the bars as communication between the inlet and outlet. This arrangement is preferred in the from shown, for the reason that the con'iparatively large frame members are 'ated at the margin of the grate where the heat is relatively low, and furthermore because these frame members will carry a larger volume of water than the bars with the result that the incoming water will be heated less quickly in the frame than in the bars, thus establishing a natural circulation.

It will be understood, however, that the invention is not limited in any particular to the precise construction shown and described, as this is purely by way of explanation, but that the invention embraces any construction of incinerator grate adapted for a positivcirculation of water through all parts thereof.

in the drawings:

Fig. 1 illustrates one embodiment of the invention and shows a longitudinal view of a garbage support partly in section.

Figure 2 is a view showing the incinerator in side elevation with one of the walls removed.

Figure 3, is a sectional elevation ofa portion of the grate.

Referring more particularly to the drawings, 11 designates opposite walls of an incharge the material thereon by the l'iinging cinerating chamber, above which is mounted a water and steam drum 1.2, and between which there is provided a swinging garbage as a whole by the numeral 13.

A large and strong tubular member 14 11, and is pro with a stuffing box 15. pipe 16 is connected in any to the lower part of the drum vided, at each end A. water inflow suitable way circulation 12', and passes through one of the stuffing and 20 constitute the main frame 01 a boxes 15 into the tubular support 14. Vvithin the support 14 there is arranged a pipe 17 connected at one end to the pipe 16 by any suitable sort of connection designated 18, which will permit of the pipes 16 and 17 being independently and relatively to tated. Branch pipes 19 are provided leading from the pipe 17 and passing through the wall of the support 14 adjacent the incinerator walls 11, or otherwise as may be desired. These pipes 19 generally speaking, depend from the support 14, but it will be understood that their exact position and relation. to the vertical is immaterial to the present invention. The lower ends of the branch pipes 19 are conuectul to one another by a pipe 20, which is generally speaking horizontal and parallel with the support 14, but which may be otherwise disposed if desired The members 14, 19

garbage support. A plurality of pipes 21 of any suita l'z'le size and spacing are connected between the pipes 14 and 20, and afford communication between these pipes. The combined flow capacities of the pipes 21 are preferably approximately equal to the flow capacity of the pipe 17. The elbows or fittings designated 22, which serve to connect the pipes 19 and 20, are of much heavier and more rigid construction than is usual, and in addition form a casing of considerable length designated 23, around the pipes 19, so as to afford a rigid joint between. the pipes 19 and 20 and also to relieve the threads of the pipes 19 where they screw in'tothese fittings of mechanical stress. The main support 14, where it passes through the walls 11, isencased in sleeves 24, each of which is provided with a radial extension 25, embracing a pipe 19, so as to form a loose connection between this pipe and the pipe 14. The sleeves 24 run in bearings 26 carried by the walls 11, and these bearings may for convenience and ease of operation, be of the roller type illustrated. The sleeves 24 are provided outside the walls with extension arms 24. To oscillate the grates, .power is transmitted through the arms 24, from a source not shown to the sleeve 24 and the radial extensions 25 to the pipes 19 and 20 which form the main frame of the garbage support or grate. The radial arms are made to embrace a considerable length of the pipes 19 to relievesaid pipes and the joints from excessive strain-due to the turning movement. The end of the support 14remote from the pipe 16 is provided with a tubular outlet 27, passing through the stufiing box and connected to any suitable point of 'the'drum 12. The inlet 16 and outlet 27 are disposed concentric with the pipe 14 or with the outer surface of the sleeves 26, it these outer surfaces are --not parallel with the pipe surface. A. water sleeves 24, through 'the arm 24.

supply pipe may be connected in any suitable way, for example leading in through the pipe 27, as indicated at 28.

The operation of the device is as follows: The apparatus being filled with water to a suitable level and heat applied, a circulation of water is set up in a well-known manner. The colder portion of water in the drum 12 flows through the connection 16 and pipe 17 to the pipes 19 and 20, and thence through the pipes 21 into the pipe 14 and back to the drum through the pipes 27 and 29. This circulation establishes itself owing to the fact that the in-flowing cold water travels in comparatively large volume through the comparatively cool marginal :trame members 19 to the pipe 20. The water then flows in comparatively small columns through the pipes 21, which :are more highly heated, so that the water heats quickly in these pipes and escapes to the tubular support 14. The circulation is much enhanced owing to the grate being so positioned in use that the pipe 14 is above the pipe 20, so that the cold water flows down to the lower ends of the pipes 21, :and on being heated rises through the :pipes 21. @wing to the fact that the combined flow capacities of the pipesl21 are about equal to the flow capacity of the inlet, all the pipes 21 will be filled with water so that none can run dry. It

will be understood, however, that the circulation may be otherwise arranged, especially if the construction of the grate differs from the construction herein disclosed. The water in the pipes 14, 19 and 120 and 21, also the water in athe drum, is heated from the burning garbage. The garbage is sup ported on the grid or grate formed by the pipes 19, 20 and 21 which have been swung to co'operative relation with some other element, such .as another similartsupport or a side wall of the incinerator. The air passes freely through the supporting grid,

so that the combustion is facilitated and promoted. If itis'desired to move the grate for the :purpose of dumping garbage or ash therefrom, this 'may be effected by applying rotative force to either or both of the The said .sleeves transmit'motion directly to the pipes 19, thus relieving the joints between these pipes and the main support 14 of any stress which would produce leakage. The swinginggrate'may be held in any position by the application of holding force to one orboth-ofthesleeves 24, and as these sleeves project through the'furnace walls 11, it will be understood that the grate moving or holding means is thus'protected from injury by the'fire.

Having thus d'escrlbedlmy invention, what '1 :claim is 1. A device of the character described comprising a tubular support, inlet' and outlet pipes at opposite ends of said support, a rectangular tubular grate frame having one side member thereof lying within said support and connected to the inlet pipe, the opposite side member of the frame being disposed in spaced parallelism with said support, and a series of tubes connected between the support and the last mentioned side member of the grate frame.

2. A device of the class described, comprising a tubular support, stufling boxes at opposite ends thereof, an inflow and an outflow pipe passing through said stufling boxes at opposite ends of the support, a pipe disposed within the support and connected to said inflow pipe, lateral branches from said last mentioned pipe passing through the wall of the support, a tubular connection between the ire-e ends of said lateral pipes,a plurality of tubular connections between the first mentioned tubular connection and the tubular support, and rotating means for said support, said means being in embracing engagement with said branches to impart movement directly thereto.

In combination with a device according to claim 2 a connection between the inflow pipe and the extension pipe permitting relative rotation of the pipes, and means rigidly holding the said inflow and outflow pipes, whereby the same constitute pivots about which the supporting pipe may rotate, and means secured to the tubular support to impart movement to the same.

4. A device of the class described, comprising tubular supports, grate sections depending from said supports and positioned within a combustion chamber, said sections comprising straight end pipes, cross pipes connecting the free ends of said straight pipes and intermediate to the tubular supports at their upper ends and to the cross pipes at their lower ends, said intermediate pipes being curved or bent at their lower ends, said tubular supports having internal construction which taken in conjunction with the grate sections presents a continuous passage for the circulation of a cooling agent from the tubular support, through the grate sections and back into the tubular support, means adapted to oscillate the grate about its suspension means, and means to transmit the power required to oscillate the grate sections.

In Witness whereof, I have hereunto set my hand.

ALEXANDER S. DECARIE.

pipes attached 

